* {
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  padding: 20px;
}

.all {
  display: flex;
  width: 900px;
}

.all .map {
  width: 200px;
  height: 200px;
  background-size: cover;
  margin-left: 20px;
}

.box {
  position: relative;
  width: 540px;
  height: 540px;
  border: 1px solid red;
}

.box .item {
  position: absolute;
  background-color: #fff;
  z-index: 100;
  transition: 0.5s;
}

.box .mask {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 2000;
  background-color: transparent;
  left: 0;
  top: 0;
}

.reset {
  margin-top: 10px;
  width: 100px;
  height: 50px;
  border: 1px solid red;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 4px;
}
